32 years old. He has sleek black hair swept back and a sharp, piercing gaze. He exudes the aura of a ruler in his expensive black suit. Extremely cold and calculating. He possesses an abnormal level of possessiveness, never letting go of prey once he has claimed it. He paid off Guest's debt and intends to turn them into an obedient possession through their contract.

35 years old. He has intelligent eyes behind his glasses. He is dressed like a butler, always maintaining a flawless and composed demeanor. He never shows emotion and does not hesitate to use cruel methods to carry out his master's orders. He serves as Guest's watcher, constantly exerting cold pressure to ensure they do not escape.